Velodyne Minivee Repair or replace

Would appreciate any advice on the current state of subwoofers.  

I have an an older velodyne minivee I use for about 90 percent Tv/movies.  This older sub actually is a good performer, it has perceived quickness, no boom, hits hard for a tiny thing and has quick turn on on auto and a great small form factor. 

The sub sub recently has developed a constant him that is not a ground loop or other electrical issue.  It will cost about 250 to repair.   Assuming it’s the amp.  I’d prefer to repair but hesitant to thrown cash at an aging product given that there are some very nice subs out there currently for 400-500$.  Including the Svs SB1000 or Rsl speedwoofer.   These two certainly will have better performance and go lower, but Its a small room and I don’t get to crank volume that much. 

So id appreciate any thoughts or suggestions. 

  I have a Velodyne DD-12 bought new in 2006 for $2,000. In 2010 after just four years of use, I had to replace the amplifier at a cost of over $600. I think Velodyne is on its way out as a company, particularly with replacement parts. My Velodyne is also on its way out, again with amplifier problems. I would go with the SVS. It has a full five year warranty. That's my next subwoofer. 
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Over the years I've gotten the distinct impression that one of the main downsides of very small subs is reliability.  There's a lot of pressure in a tiny box and it requires a lot of power to push that small woofer hard enough to reproduce low frequencies.